Reel-oven



J. DAUUN MW B. E. DE MIIEULE.

REEL UVIEN.

MPummm min mmf m. 1mm. 1,399,750. Fntentd He. 13,; 19m..

j. DALTUN AND B. C. DE MEULLE.

REEL OVEN.

APPLICATION FILED JUNE 4. |919.

Patented Dec. 13, 1921.

2 SHEETS-SHEET 2.

UNITED STATES NAME@ DAETN, F LOS ANGELES, .L

1l BERNMJD C. lDlE ME'ULJLJE, 01E' LUNG`BEAH,

CALIFORNIA., ASSIGNORS T@ DALTUN OVEN CO., A CUEPABTNERSHEIP COMVPUSED UF. JAMES IDALTON ANID BERNARD C. DE MEULLE, @1F LUN@ BEACH, CAMUFURNA.

anna-evan.

intatta Specification o Letters Patent.

Patented Deo. 13., lint..

Application filed June t, 1919. Serial Ito. 301,905.

@un invention relates to bakers ovens, Ibef ing more particularly of the type kno-wn as reelI ovens. One of the great objections on the part of operators of reel ovens to the use ot such an oven is that when opening the door to load or unloadthe oven the heat from the oven rushes out of theA door to such an extent that in some cases the operator is singed and burned,'and always during such erations are extremely unpleasant. j This action yof the heat rushing outwardly through .the door is 'partly due tothe fact that the oven door is usually placed well up on the side ot the 0ven, and one of the principal objects ot our invention is to provide ttl a construction 4whereby the heat from the oven is suelred upwardly directly over the door opening therebypreventing the blast ot1 heat through the open door.

Another object ot our invention is to provide a radiation plate over the combustion chamber so .arranged as to diduse the heat trom the combustion chamber more evenly throughout the baking chamber.

A further object of our invention is to provide means whereby the oven may be manually operated in case the power should tail, and also during the loading or unload- 1n operation. y l

urther objects and advantages will be madeA evident hereinafter from the following specification'. .j

Referring to the drawings, which are for illustrative purposes only,

Figure 1 1s a vertical sectional viewv of anv oven embodying a form of our invention.

Fig. 2 is a vertical sectional view through half of the upper portion` ofthe oven.

Fig 3 is an enlarged vertical sectional view of the oven door and its adjacent parts.

lFig. 4c is a diagrammatic, vertical, longitudinal sectional view of the oven, and

Fig. 5 is a diagrammatic view showing the driving mechanism for' the oven.

The oven consists of lower sections 117 intermediate sections 12, and a roof section 13, the lower sections 11 resting upon walls-1A of .the combustion chamber 15. The coni-l bustion chamber 15 is provided with a door 16 and with a hearth 17 above which is arranged a gas burner 18' or other` suitable means for producing combustion.' Forming the upper portion of the combustion chains ber is a curved plate 20hinged at 21 to one of the walls 1t and having itsI opposite edge 22 resting upona latch 23 whereby the plate 20- is held in place, the latch 23 being .pivol tally mounted in one of the "walls laas inoperations the heat is so great that such opdicated at 24 and having a handle 25 where-l by the4 latch` may be readilyoperated to release the plate and permit the same to swing] downwardly into the combustionchamber as herematter ret'erred to.

A portion of the plate 20 at each side is cut away aspindicated at26 to permit the hot products oil combustion to pass from the combustion chamber to the baking chamber. 4

ln the form shown the lower sections 11 of the oven are angularly disposed and are connected at their upper ends in any suitable the intermediate sections being connected 1n any suitable manner to the roof section which,' in cross-section, is shown. in Fig. 14

in the form of a semicirculararch. Each ot' l the sections 11, 12 and 13 is formed with anl are vertically arranged and close the ends of the oven.

Mounted upon a shat 35 which extends through the end walls ot the oven, being suitably journaled therein, is a reel et any manner to theintermediate sections which are vertically disposed, the upper ends ot lill@ common form and construction indicated at 36, such reel having pivotally mounted and hung thereon a series of trays 37 upon which the articles to be baked are arranged, 40

ldesignates the oven door, being pivotally v,interior of the oven is a curved plate 44 which extends from end to end of the oven and from a point immediately inside and over the doorl to the topof the oven, which plate is spaced apart from the inner sheet 31 of the curved section of the oven thereby leaving a space indicated at 45 forming a vent which connects with a stack manifold 46 b-y means of a series of o-pen pipes or nipples 47, such stackmanifold 46 being in open communication with the stack 48. The lower end or mouth of the vent 45 is closed at all times except when the oven door is open. This is accomplished lby means t; a iap damper 50 pivotally mounted on the oven wall at 51 and held in closed or' full line position as shown in Fig. 3 by the upper plate 52 of the door 40. When the door is swung upwardlythefplate 52 moves away from the damper 50 and permits the same to fall into the dotted line position shown in- Fig. 3 thereby opening thevent as hereinafter more fully described.

The oven is provided with a series of tlues 55, the passage of heat therethrough being regulated by a sliding damper 56 having openings 57 therein registering wfith the flues 55, the damper being operated by a worm 58 operating in a block 59, the worm being provided with a suitable operating handle indicated at 60. The damper56 is also provided with large openings 61 which extend over the pipes 47, such openings 61 being large enough so that the pipes 47 are always in full open position, the damper beingrsolelyfor the regulation of the flues 55 which control or regulate the passage of heat from the oven duringthe baking operation. f

The reel isdriven by means of a gear wheel 62 secured to the shaft 35, such gear wheel being driven by means o'f a worm 63 on a shaft 64, such shaft being provided with a gear 65 which is driven from a pinion 66 on the motor shaft 67 of a motor 68. One end of the shaft 64 is squared as indicated at 69 to receive a wheel or crank 70 by means of which the reel may be operatedmanually when desired. y l

f The construction of the reel and the trays thereon it is understood may be of any well known form, but I' have found that by curving the plate 2O as shown that the heat radiated from such curved plate is in upwardly diverging rays, the heat therefrom being radiated upwardly along the sides vof the oven as well as directly upward, the direct heat lfrom the combustion chamber passing upwardly at each side of the plate as heretofore referred to.

When it is desired to open the oven, the oven door is swung outwardly on its hinge 41 by means of the handle 42 and the ap damper 50 drops downwardly into the dotted line position shown in Fig. 3 thereby opening the vent 45, which vbein in open communication with the stack raws the heat from about the door upwardly through the vent and at the same time causes a slight inflow of air through the door instead of the hot blast going outwardly as is commonly the case. his permits the operator to load and unload the oven in much shorter time and with much less dan er than with ovens as ordinarily constructed.

I have also found that by arranging means described above for manually operating the driving mechanism that the operation of loading and unloading is greatly facilitated as the reel may be turned any desired distance by hand and stopped where desired. This feature of manual operation is also desirable where the power fails during the baking operation, as in such case the entire contents of the oven are lfrequently .burned or ruined before the same can be removed.

Should the contents of any tray become dislodged and fall in the oven, the plate 2O may be dropped by operatinoF the latch 23 heretofore referred to, there y permitting the -material to fall to the bottom of the combustion chamber and be removed through the door 16. The reset and held in place by the latch 23.

lVe claim as our invention 1. An oven having a baking chamber, a door for the baking chamber, a stack for said oven, flues for regulating the passage of heat from the baking chamber to said stack, a vent in open communication at one end with the stack and terminating at its other end within said baking chamber inside the door, and means whereby said vent is opened coincident with openlng the door.

2. A reel oven comprising a baking chamber, areel in said chamber, a door for said chamber, extending acro one side of said oven, a stack for said oven, a series of iucs for said chamber communicating with said stack, means for regulating the paage of heat from said chamber to said stack through the iiues, a vent formed in the baking chamber having communication with said stack and having its mounth disposed' within the baking chamber along the top of the door opening, a damper pivotally mounted on the oven wall for the mouth of said vent, and means on said door arranged'to engage and close said damper when the door is in Closed position.

plate 20 may be one end in open 3. A reel oven comprising a baking chamber, a reel in the baking chamber, a stack,

flues connecting thel stack with the baking chamber, a curved 'plate betwen the baking chamber and the combustion'chamber, means for pivotally mounting said platealong one side thereof, latch means for supporting the other side of said plate, said plate having openings along each side for the passage of heat from the combustion chamberto the baking chamber, and' a door fr said combustion chamber.

4. A reel oven comprising a baking chamber, a combustion chamber arranged below the baking chamber, a reel in. the baking chamber, means for revolving said reel, a door for said baking chamber in the side thereof, a Stack, a manifold for said stack, a. series of fiues connecting said 4baking chamber with said manifold, a damper arranged to regulate the passage of heat through said dues, a plata spaced. apart from vthe inside of said baking chamber and extendin throughout the length of the bakingcham r forming a vent having its lower end'or mouth terminating at the top of said door insidel the baking chamber, and a Hap damper pivotally mounted at the mouth. of said vent arranged to be engaged by said door when in closed position to close said damper and to be disengaged by said door when in open position. to open the mouth of said vent. Y

5. A reel oven comprising a baking chamber, a reel in said chamber, a door for said chamber extending across one side of said oven, a stack for said oven, a stack manifold chamber extending throughout the length of said chamber forming a vent open at its lower end inside said. chamber above the door and closed at its upper end, a series of nipples connecting said vent with said manifold, a series of iiues extending through said vent communicating with said chamber and said manifold, and a sliding damper in said manifold having openings therein registering with said nipples and said flues.

6. A reel oven comprising a baking chamber, a reel in said chamber, a door for said chamber extending across one side of said oven, a stack for said oven, a stack manifold communicatig with. said stack, a plate vspaced apart from the inner face of said.

chamberI extending throughout the length of said chamber forming a vent open at its lower end inside said chamber above the door and closed at its upper end, a series of nipples connecting said vent with said manifold, a series of lues extending through said vent communicating with said chamber and said manifold," and a flapdamper pivotally mounted at the mouth of said vent arranged to be engaged by said door when in closed position to close the lower end of saidvent.

In testimony whereof We have hereunto set our hands and seals at Los Angeles, California, this 27th da of Ma 1919.

' JAMES ALT@ BERNARD 0. DE MEULLE. 

